Melt together over hot water      2 sq. unsweetened chocolate
                                             1/3 cup butter

Beat in        1 cup sugar
                  2 eggs

Sift together and stir in    3/4 cup sifted flour
                                    1/2 tsp. baking powder
                                    1/2 tsp. salt

Spread in well greased square pan.
Bake (350°F) until top has dull crust (about 30 min.)
Cool slightly, then cut into squares.

Chocolate icing :

Melt over hot water 1 tbsp. butter and 1 sq. unsweetened chocolate.
Blend in 1 1/2 tbsp. warm water.
Stir and beat in about 1 cup sifted confectioners' sugar.

Serve with crème anglaise.

PS : mettre du papier sulfurisé dans le moule.
        1 sq. = 1 oz. = 28 g